Question

Which sentence correctly fixes this run-on sentence? That was quite a traffic jam, many drivers honked their horns, one car blocked the intersection. A. That was quite a traffic jam; many drivers honked their horns, and one car blocked the intersection. B. That was quite a traffic jam. Many drivers honked their horns, one car blocked the intersection. C. That was quite a traffic jam and many drivers honked their horns, one car blocked the intersection. D. That was quite a traffic jam, many drivers honked their horns. One car blocked the intersection.

Answer 1

A. That was quite a traffic jam; many drivers honked their horns, and one car blocked the intersection.   is correct, the others do not obey the standard english grammar rules

Answer 2

"A. That was quite a traffic jam; many drivers honked their horns, and one car blocked the intersection" is the best option, but you could use a period instead of a semicolon there. It's all a matter of preference.